1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 */ 19 20 package org.apache.myfaces.orchestra.conversation; 21 22 /** 23 * An object that is able to bind an arbitrary object to a specific conversation. 24 * <p> 25 * Only code that extends Orchestra to support new dependency-injection frameworks should need 26 * to implement this interface. 27 * 28 * @since 1.3 29 */ 30 public interface ConversationBinder 31 { 32 /** 33 * Return a proxy object that "binds" the specified instance to a specific conversation. 34 * <p> 35 * Whenever a method is executed on the returned proxy the conversation is "entered" before the method 36 * is invoked on the actual instance, as if the specified instance were a bean that was defined 37 * in the dependency-injection framework as belonging to the conversation. 38 * <p> 39 * This interface is expected to be used only via calls to Conversation.bind(Object). 40 * <p> 41 * The proxy object returned has a "direct" binding to the conversation. This makes calls to the 42 * instance relatively quick, but also means that the proxy object becomes "stale" if the 43 * conversation becomes invalid. 44 */ 45 Object bind(Object instance); 46 }